By Noah Eberhardt, Kennedy Bell, Max Grooms, and Claire Alexander Intertidal Zone By Noah Eberhardt, Kennedy Bell, Max Grooms, and Claire Alexander

“Where the land meets the sea is where I want to be!” Motto “Where the land meets the sea is where I want to be!”

What is an intertidal zone? The intertidal zone is an area where the ocean floor is exposed to the air. In other words, this is where the land meets the sea between high and low tides. Life in the intertidal zone has to overcome many obstacles because of the fact that they're both submerged in water and exposed to the air for long periods of time. The salinity of this zone is normally ranging from 33-35 parts per thousand. Although, it can drastically change due to the different temperatures or weather of the zones.

Intertidal zone continued... The intertidal zone can be 16-33 feet deep, containing the subtidal zone, low tide zone, middle tide zone, high tide zone, and spray zone. As a whole, the intertidal zone can receive different amounts of sunlight, which brings many different types of organisms.

Subtidal Zone The subtidal zone is the lowest part of the intertidal zone and it has the least amount of exposure to sunlight, which causes it to be much more stable. Meaning that the temperature, water pressure and amount of sunlight remain the same.

The Low Tide Zone The low tide zone is mostly submerged in water and can receive a lot of indirect sunlight because the sun gets through the water and beams onto this zone. The organisms that live here are not well adapted to extended dry periods.

The Middle Tide Zone The middle tide zone, or the lower mid-littoral zone is part of the land that is accustomed to waves coming and going in this area. Organisms have to have a unique way of adapting to this environment. For example, anemones and mussels close their shells to keep their moisture and crabs burrow into the ground. Organisms are also accustomed to varied temperatures due to seasonal and tidal changes.

The High Tide Zone The high tide zone is elevated land that only gets flooded during high tides. This zone gets a large amount of direct sunlight due to extended periods of dry, exposed conditions.

The Spray Zone The spray zone is the highest elevation within intertidal zone. This area is rarely submerged in water, and only receives a small mist of ocean water when waves come crashing in. This zone is the closest to the shore and doesn’t consistently receive water. It gets the most sunlight because of the exposure of the area, resulting in the low amount of vegetation in this area.

Different types of organisms Barnacles(animals) Crabs(animals) tube worms(animals) limpets(animals) anemones(plants) sea palms(plants) green algae(plants) sea lettuce(plants)

Three Facts The higher the zone, the less abundance of life there is. 2) The harsh conditions in the intertidal zone can wash away poorly suited organisms. 3) The intertidal zone is broken up based on the average exposure of the zone.

Questions…. What is the intertidal zone? 2) What’s a common way mussels and anemones keep their moisture? 3) Which zone gets the most amount of sunlight? Spray Zone High Tide Zone Subtidal Zone Low Tide Zone

Credits https://www.enchantedlearning.com/subjects/ocean/Intertidal.shtml http://www.thewildclassroom.com/biomes/intertidal.html http://noaacontent.nroc.org/lesson10/l10la2.html#sprayzone https://www.britannica.com/science/littoral-zone http://home.earthlink.net/~huskertomkat/mid.html http://www.beachapedia.org/Intertidal_Zone http://www.marbef.org/wiki/Rocky_shore_habitat